Monthly outlook for Union Star, MO: average high 65°, average low 47.8°. That is 2.4° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 24 October (77.9°), the coolest 17 October (35.6°).
65°/47.8°
Average high / low
+2.4°
Above normal
3 / 4
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
66.4°
62.1°
+2.4°
26 October – 4 November
62.8°
57.4°
+3°
5 November – 14 November
at normal
52.4°
—
October records over 66 years
92.8°10 October 1963All-time high
17.6°27 October 1997All-time low
Climate normals and records are computed from the nearest reference point — King City (6 mi).
Sat, 1757° / 36°0
57 °
Union Star, Saturday, 17 October
Clear. High 57°, low 36°.
Pressure30.56 inHg
Wind7.4 mph SW
Humidity51%
Visibility6.2 mi
Dew point35°
Sun, 1863° / 40°0
63 °
Union Star, Sunday, 18 October
Clear. High 63°, low 40°.
Pressure30.36 inHg
Wind13.8 mph S
Humidity59%
Visibility6.2 mi
Dew point43°
Mon, 1964° / 46°0
64 °
Union Star, Monday, 19 October
Overcast. High 64°, low 46°.
Pressure30.30 inHg
Wind10.4 mph S
Humidity61%
Visibility6.2 mi
Dew point46°
Tue, 2068° / 50°0.11
68 °
Union Star, Tuesday, 20 October
Light rain. High 68°, low 50°.
Pressure30.27 inHg
Wind9.7 mph S
Humidity64%
Visibility6.2 mi
Dew point50°
Wed, 2170° / 52°0.17
70 °
Union Star, Wednesday, 21 October
Rain. High 70°, low 52°.
Pressure30.21 inHg
Wind10.5 mph S
Humidity54%
Visibility—
Dew point48°
Thu, 2275° / 54°0
75 °
Union Star, Thursday, 22 October
Overcast. High 75°, low 54°.
Pressure30.09 inHg
Wind12.6 mph S
Humidity48%
Visibility—
Dew point49°
Fri, 2375° / 57°0
75 °
Union Star, Friday, 23 October
Overcast. High 75°, low 57°.
Pressure30.06 inHg
Wind14.1 mph S
Humidity36%
Visibility—
Dew point44°
Sat, 2478° / 58°0
78 °
Union Star, Saturday, 24 October
Mostly clear. High 78°, low 58°.
Pressure30.12 inHg
Wind12.7 mph S
Humidity42%
Visibility—
Dew point49°
Sun, 2564° / 50°0.52
64 °
Union Star, Sunday, 25 October
Rain. High 64°, low 50°.
Pressure30.12 inHg
Wind13.7 mph N
Humidity84%
Visibility—
Dew point58°
Mon, 2655° / 42°0
55 °
Union Star, Monday, 26 October
Clear. High 55°, low 42°.
Pressure30.39 inHg
Wind11.9 mph N
Humidity49%
Visibility—
Dew point33°
Tue, 2758° / 39°0.01
58 °
Union Star, Tuesday, 27 October
Light rain. High 58°, low 39°.
Pressure30.33 inHg
Wind9.2 mph SE
Humidity44%
Visibility—
Dew point31°
Wed, 2865° / 48°0.01
65 °
Union Star, Wednesday, 28 October
Light rain. High 65°, low 48°.
Pressure30.03 inHg
Wind19.2 mph S
Humidity61%
Visibility—
Dew point49°
Thu, 2970° / 54°0.03
70 °
Union Star, Thursday, 29 October
Light rain. High 70°, low 54°.
Pressure29.83 inHg
Wind19.6 mph SW
Humidity32%
Visibility—
Dew point37°
Fri, 3063° / 49°0
63 °
Union Star, Friday, 30 October
Mostly clear. High 63°, low 49°.
Pressure30.15 inHg
Wind12.1 mph NW
Humidity53%
Visibility—
Dew point42°
Sat, 3166° / 49°0.04
66 °
Union Star, Saturday, 31 October
Light rain. High 66°, low 49°.
Pressure29.80 inHg
Wind18.3 mph S
Humidity59%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0158° / 42°0.17
58 °
Union Star, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.17 in
Chance of precipitation28%
Record high76° (1990)
Record low23° (1991)
Mon, 0255° / 40°0.07
55 °
Union Star, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.07 in
Chance of precipitation25%
Record high77° (1964)
Record low15° (1991)
Tue, 0355° / 40°0.11
55 °
Union Star, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.11 in
Chance of precipitation27%
Record high75° (2022)
Record low12° (1991)
Wed, 0455° / 40°0.1
55 °
Union Star, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.1 in
Chance of precipitation23%
Record high76° (1978)
Record low13° (1991)
Thu, 0554° / 39°0.06
54 °
Union Star, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.06 in
Chance of precipitation28%
Record high73° (2015)
Record low22° (1967)
Fri, 0655° / 38°0.07
55 °
Union Star, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.07 in
Chance of precipitation15%
Record high72° (1999)
Record low19° (1991)
Sat, 0755° / 38°0.02
55 °
Union Star, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.02 in
Chance of precipitation10%
Record high73° (1966)
Record low3° (1991)
Sun, 0855° / 39°0.05
55 °
Union Star, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.05 in
Chance of precipitation23%
Record high76° (1980)
Record low-3° (1991)
Mon, 0955° / 39°0.12
55 °
Union Star, Monday, 9 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.12 in
Chance of precipitation33%
Record high72° (1999)
Record low18° (2018)
Tue, 1052° / 36°0.13
52 °
Union Star, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.13 in
Chance of precipitation28%
Record high73° (2012)
Record low12° (2018)
Wed, 1150° / 34°0.07
50 °
Union Star, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.07 in
Chance of precipitation23%
Record high74° (1964)
Record low11° (1986)
Thu, 1249° / 34°0.07
49 °
Union Star, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.07 in
Chance of precipitation20%
Record high69° (2005)
Record low4° (1968)
Fri, 1350° / 34°0.06
50 °
Union Star, Friday, 13 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.06 in
Chance of precipitation13%
Record high75° (1999)
Record low6° (1986)
Sat, 1450° / 36°0.03
50 °
Union Star, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.03 in
Chance of precipitation20%
Record high74° (2025)
Record low15° (2014)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Union Star, MO are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Union Star, MO since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.